I use arch on a couple of machines and for a rolling release I find it surprisingly hassle free. So with a scientifically relevant sample size of one ;) - I declare that it's the people that are the problem.

That is with regular updates though.

I also have a gentoo box that is fine if you let it update every week or two, but tends to need more love and attention if you turn it on again after half a year. I wouldn't be surprised if that's the same for arch. Users who only update twice a year aren't really the target audience for rolling release.

It probably also depends on your hardware and what your usecases are; as always using the right tool for the job helps